berkelium
a transuranic element. Symbol: Bk; atomic number: 97; atomic weight: 249 (?).
Origin of berkelium
1Words Nearby berkelium
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British Dictionary definitions for berkelium
/ (bɜːˈkiːlɪəm, ˈbɜːklɪəm) /
a metallic transuranic element produced by bombardment of americium. Symbol: Bk; atomic no: 97; half-life of most stable isotope, 247 Bk: 1400 years; valency: 3 or 4; relative density: 14 (est)
Origin of berkelium
1Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for berkelium
[ bər-kē′lē-əm, bûrk′lē-əm ]
A synthetic, radioactive metallic element of the actinide series that is produced from americium, curium, or plutonium. Its most stable isotope has a half-life of about 1,400 years. Atomic number 97; melting point 986°C; valence 3, 4. See Periodic Table.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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